All of the following are broad classes of rock except
A) sedimentary
B) igneous
C) metamorphic
D) crystal
E) limestone

Question

Quizplus · Accepted Answer

"Crystal" is not a broad class of rock, but rather a type of arrangement or structure within minerals that can be found in all three types of rocks (sedimentary, igneous, and metamorphic). "Limestone" is a type of sedimentary rock, so it is not a valid choice either.

All of the Following Are Broad Classes of Rock Except